Airtac BSAI Locking Clamp Cylinder BSAI100X175
The AirTAC Airtac BSAI Locking Clamp Cylinder BSAI100X175 is a genuine double-acting ISO 15552 cylinder with a Ø100mm bore, 175mm stroke and a spring-applied, air-released clamp-lock that holds the rod at ANY position along its travel — with a static holding force of 5500 N.
- BoreØ100 mm
- Stroke175 mm
- Cylinder portG1/2
- TypeSingle rod (BSAI)
- Enclasp portG1/8
- Rod threadM20×1.5
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac BSAI Locking Clamp Cylinder BSAI100X175
The AirTAC BSAI100X175 is a double-acting ISO 15552 profile cylinder featuring a spring-applied, air-released clamp-lock that grips the 25 mm carbon steel piston rod at any point along its 175 mm travel. It delivers a practical maximum thrust of 5497 N at 0.7 MPa, while the integrated enclasp mechanism provides a distinct static holding force of 5500 N. Buyers must size the holding force against the static load rather than the cylinder thrust, as these are separate quantities.
This unit requires a third G1/8 enclasp port alongside its 1/2 inch PT cylinder ports. The variable air cushion only decelerates the piston near the stroke ends to prevent impact; the clamp itself is what secures the load. Unlocking requires balanced air pressure on both sides of the piston, as releasing the grip on an unbalanced cylinder can cause abrupt rod movement.
Airtac BSAI Locking Clamp Cylinder BSAI100X175 Technical Specifications
| Model | Airtac BSAI Locking Clamp Cylinder BSAI100X175 |
|---|---|
| Series | BSAI ISO 15552 clamp-lock cylinder |
| Bore size | Ø100 mm |
| Stroke | 175 mm |
| Type | Single rod (BSAI), double acting |
| Cylinder port | G1/2 |
| Rod thread | M20×1.5 |
| Lock type | Spring-applied, air-released clamp (any position) |
|---|---|
| Static holding force | 5500 N |
| Enclasp / unlock port | G1/8 |
| Operating pressure | 0.15 – 0.7 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Max stroke | Up to 1000 mm |
Specifications follow the official AirTAC BSAI datasheet (ISO 15552). Operating pressure is 0.15–0.7 MPa (lower than a plain SAI). Port options: PT / G.
How the Clamp-Lock Holds
static holding force (Ø100 mm)
A spring-applied gripper clamps the rod and holds the load at any position in the stroke — not just at the stroke end (that is a SAIL) — and it is bidirectional: it holds whether the rod was extending or retracting.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3682 N |
| 0.7 MPa (max) | 5498 N | — |
Push/pull as tabulated. Rated to the 0.7 MPa operating maximum for this series. The clamp holding force (5500 N) is separate from cylinder thrust. Size with a margin.
Where the Airtac BSAI Locking Clamp Cylinder BSAI100X175 Is Used
Vertical Axis Hold
Prevents gravity-driven drops on vertical lifts by clamping the rod securely at any intermediate height during an unexpected air pressure loss.
Machining Position Lock
Freezes the workpiece in a specific intermediate location for milling or drilling operations without relying on continuous pneumatic pressure.
Emergency Safety Stop
Holds the load instantly upon power loss, though an independent safety measure is required if human safety depends on the hold.
Is the Airtac BSAI Locking Clamp Cylinder BSAI100X175 the Right Clamp-Lock?
Choose this 100 mm bore model when a load demands up to 5500 N of holding force and 5497 N of thrust. If your application requires less force, stepping down to the 80 mm bore drops the holding capacity to 3600 N and the 0.5 MPa thrust to 2513 N. Conversely, the 125 mm bore offers 8600 N holding force for heavier dies. Select the BSAI over a SAIL unit when you need to freeze the rod mid-stroke rather than just at the ends; a plain SAI suffices if no lock is needed.
The clamp engages only after the rod stops, meaning it cannot brake a moving load, and safety-critical applications need an independent backup. This single-rod variant supports Basic, FA, FB, CA, CB, CR, LB, TC, TCM1, and TCM2 mounts. The robust M20x1.5 rod thread handles high side loads, and since this unit lacks the -S magnet, add one if CMSE reed or DMSE electronic sensors are needed.
Quick checklist
- ✓ Hold needed at any position?
- ✓ Or stroke-end only → use SAIL
- ✓ Holding force ≥ your load
- ✓ Balanced-pressure unlock circuit
- ✓ Extra safety measure for people
Airtac BSAI Locking Clamp Cylinder BSAI100X175 FAQ
The clamp-lock provides a static holding force of 5500 N. It engages via a spring-applied, air-released mechanism that grips the rod at any position, but only after the cylinder has stopped moving.
The clamp uses a separate G1/8 enclasp port and unlocks only when air pressure is balanced on both sides of the piston. Releasing the clamp on an unbalanced cylinder can cause the rod to jump abruptly, so pressure must be equalized first.
Related AirTAC Lock & Standard Cylinders
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